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7 February, 16:46

Can someone share some info about Motion, speed, acceleration, and velocity?

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  1. 7 February, 19:51
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    I'll explain them as best I can linking them together:

    Motion - Describes general movement of an object, has no unit, an object is either in motion or it is not.

    Speed - A scalar quantity, that is to say it can only be positive and has no direction to it. This is measured in m/s.

    Acceleration - The differential of a speed time graph, it is the rate of change of speed (i. e. how much speed changes per unit time), and is measured in m/s/s (m/s^2)

    Velocity - The Vector version of speed, that is to say it has a direction and can be negative. The velocity of an object also tells us the direction it is travelling, rather than merely how fast it is travelling.
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